Mr. Durfeys Evolution

Darwin observed differences in the shape of these in finches depending on their food source.

Random __________ in genes can lead to favorable adaptations in a species.

A modern source of evidence for evolution comes from something Darwin never knew about.

When using the phrase "survival of the fittest" to describe evolution, "fittest" means:

Where Darwin began work on his theory of evolution.

An inherited trait that helps an organism survive.

Genetic variation, adaptation, and isolation in a population can lead to a new________

This is drawn to show the evolutionary relationship between animals

The anatomy of whale fins, human arms and bird wings are an example of:

When organisms with the best adaptations for their environment survive and have offspring. 

When species change over a long period of time

In order for there to be variation in a species, this must randomly occur:

When a species can not adapt fast enough to its changing environment.

Origin of the Species was a book written by a naturalist named

Natural______ has taken place when white bugs are eaten more often than brown camouflaged bugs.

Darwin studied all of these subjects except: